I was finally able to connect to the xenapi hypervisor using virsh of libvirt 0.9.2. However, once I connect to virsh and give a 'quit' command I get "* glibc detected *** virsh: double free or corruption (fasttop):". Please find below the actual memory dump.

Note: I have disabled the SSL certificate verification in xenapi_driver.c by setting curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0) & curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0).

[root@sharmila libvirt-0.9.2]# virsh -c "xenapi://localhost"

Enter username for localhost: root

Enter root's password for localhost:

Welcome to virsh, the virtualization interactive terminal.

Type: 'help' for help with commands

----------------------------------

0 Control domain on host: sharmila running

- Control domain on host: sharmila running

- XenServer SDK 5.6.100-47101p import shut off

*** glibc detected *** virsh: double free or corruption (fasttop): 0x09fcc370 ***

======= Backtrace: =========

/lib/libc.so.6[0xb6fc56c5]

/lib/libc.so.6(cfree+0x59)[0xb6fc5b09]

/usr/local/lib/libvirt.so.0(virFree+0x42)[0xb760d712]

/usr/local/lib/libvirt.so.0[0xb777031d]

/usr/local/lib/libvirt.so.0[0xb776ec10]

/usr/local/lib/libvirt.so.0[0xb7676017]

/usr/local/lib/libvirt.so.0(virUnrefConnect+0x128)[0xb7677888]

/usr/local/lib/libvirt.so.0(virConnectClose+0xda)[0xb769ad4a]

/lib/libc.so.6(__libc_start_main+0xdc)[0xb6f71e9c]

======= Memory map: ========

08048000-08079000 r-xp 00000000 08:01 378273 /usr/local/bin/virsh

08079000-0807a000 rw-p 00031000 08:01 378273 /usr/local/bin/virsh

09fa1000-0a060000 rw-p 00000000 00:00 0 [heap]

b6b61000-b6b6c000 r-xp 00000000 08:01 182153 /lib/libgcc_s-4.1.2-20080825.so.1

b6b6c000-b6b6d000 rw-p 0000a000 08:01 182153 /lib/libgcc_s-4.1.2-20080825.so.1

b6b6d000-b6b77000 r-xp 00000000 08:01 181027 /lib/libnss_files-2.5.so

b6b77000-b6b78000 r--p 00009000 08:01 181027 /lib/libnss_files-2.5.so

b6b78000-b6b79000 rw-p 0000a000 08:01 181027 /lib/libnss_files-2.5.so

b6b81000-b6b83000 rw-p 00000000 00:00 0

b6b83000-b6d83000 r--p 00000000 08:01 447132 /usr/lib/locale/locale-archive

b6d83000-b6d86000 rw-p 00000000 00:00 0

b6d86000-b6d88000 r-xp 00000000 08:01 180820 /lib/libkeyutils-1.2.so

b6d88000-b6d89000 rw-p 00001000 08:01 180820 /lib/libkeyutils-1.2.so

b6d89000-b6d91000 r-xp 00000000 08:01 377484 /usr/lib/libkrb5support.so.0.1

b6d91000-b6d92000 rw-p 00007000 08:01 377484 /usr/lib/libkrb5support.so.0.1

b6d92000-b6d99000 r-xp 00000000 08:01 182148 /lib/librt-2.5.so

b6d99000-b6d9a000 r--p 00007000 08:01 182148 /lib/librt-2.5.so

b6d9a000-b6d9b000 rw-p 00008000 08:01 182148 /lib/librt-2.5.so

b6d9b000-b6dab000 r-xp 00000000 08:01 180816 /lib/libresolv-2.5.so

b6dab000-b6dac000 r--p 0000f000 08:01 180816 /lib/libresolv-2.5.so

b6dac000-b6dad000 rw-p 00010000 08:01 180816 /lib/libresolv-2.5.so

b6dad000-b6daf000 rw-p 00000000 00:00 0

b6daf000-b6ddf000 r-xp 00000000 08:01 378111 /usr/lib/libidn.so.11.5.19

b6ddf000-b6de0000 rw-p 0002f000 08:01 378111 /usr/lib/libidn.so.11.5.19

b6de0000-b6de1000 rw-p 00000000 00:00 0

b6de1000-b6de3000 r-xp 00000000 08:01 180823 /lib/libcom_err.so.2.1

b6de3000-b6de4000 rw-p 00001000 08:01 180823 /lib/libcom_err.so.2.1

b6de4000-b6e0a000 r-xp 00000000 08:01 378185 /usr/lib/libk5crypto.so.3.1

b6e0a000-b6e0b000 rw-p 00025000 08:01 378185 /usr/lib/libk5crypto.so.3.1

b6e0b000-b6e9f000 r-xp 00000000 08:01 378198 /usr/lib/libkrb5.so.3.3

b6e9f000-b6ea2000 rw-p 00093000 08:01 378198 /usr/lib/libkrb5.so.3.3

b6ea2000-b6ece000 r-xp 00000000 08:01 378160 /usr/lib/libgssapi_krb5.so.2.2

b6ece000-b6ecf000 rw-p 0002c000 08:01 378160 /usr/lib/libgssapi_krb5.so.2.2

b6ecf000-b6ed2000 r-xp 00000000 08:01 377492 /usr/lib/libgpg-error.so.0.3.0

b6ed2000-b6ed3000 rw-p 00002000 08:01 377492 /usr/lib/libgpg-error.so.0.3.0

b6ed3000-b6ed4000 rw-p 00000000 00:00 0

b6ed4000-b6f0f000 r-xp 00000000 08:01 182149 /lib/libsepol.so.1

b6f0f000-b6f10000 rw-p 0003b000 08:01 182149 /lib/libsepol.so.1

b6f10000-b6f1a000 rw-p 00000000 00:00 0

b6f1a000-b6f5a000 r-xp 00000000 08:01 378242 /usr/local/lib/libcurl.so.4.1.0

b6f5a000-b6f5b000 rw-p 00040000 08:01 378242 /usr/local/lib/libcurl.so.4.1.0

b6f5b000-b6f5c000 rw-p 00000000 00:00 0

b6f5c000-b70af000 r-xp 00000000 08:01 180994 /lib/libc-2.5.so

b70af000-b70b1000 r--p 00153000 08:01 180994 /lib/libc-2.5.so

b70b1000-b70b2000 rw-p 00155000 08:01 180994 /lib/libc-2.5.so

b70b2000-b70b5000 rw-p 00000000 00:00 0

b70b5000-b70b8000 r-xp 00000000 08:01 180979 /lib/libdl-2.5.so

b70b8000-b70b9000 r--p 00002000 08:01 180979 /lib/libdl-2.5.so

b70b9000-b70ba000 rw-p 00003000 08:01 180979 /lib/libdl-2.5.so

b70ba000-b70e1000 r-xp 00000000 08:01 182017 /lib/libm-2.5.so

b70e1000-b70e2000 r--p 00026000 08:01 182017 /lib/libm-2.5.so

b70e2000-b70e3000 rw-p 00027000 08:01 182017 /lib/libm-2.5.so

b70e3000-b70e4000 rw-p 00000000 00:00 0

b70e4000-b70f6000 r-xp 00000000 08:01 378165 /usr/lib/libz.so.1.2.3

b70f6000-b70f7000 rw-p 00011000 08:01 378165 /usr/lib/libz.so.1.2.3

b70f7000-b7223000 r-xp 00000000 08:01 378174 /usr/lib/libxml2.so.2.6.26

b7223000-b7228000 rw-p 0012c000 08:01 378174 /usr/lib/libxml2.so.2.6.26

b7228000-b7229000 rw-p 00000000 00:00 0

b7229000-b723e000 r-xp 00000000 08:01 181033 /lib/libpthread-2.5.so

b723e000-b723f000 r--p 00015000 08:01 181033 /lib/libpthread-2.5.so

b723f000-b7240000 rw-p 00016000 08:01 181033 /lib/libpthread-2.5.so

b7240000-b7242000 rw-p 00000000 00:00 0

b7242000-b7258000 r-xp 00000000 08:01 181005 /lib/libselinux.so.1

b7258000-b725a000 rw-p 00015000 08:01 181005 /lib/libselinux.so.1

b725a000-b7389000 r-xp 00000000 08:01 182129 /lib/libcrypto.so.0.9.8e

b7389000-b739c000 rw-p 0012e000 08:01 182129 /lib/libcrypto.so.0.9.8e

b739c000-b73a0000 rw-p 00000000 00:00 0

b73a0000-b73e4000 r-xp 00000000 08:01 180822 /lib/libssl.so.0.9.8e

b73e4000-b73e8000 rw-p 00043000 08:01 180822 /lib/libssl.so.0.9.8e

b73e8000-b7419000 r-xp 00000000 08:01 383239 /usr/lib/libcurl.so.3.0.0

b7419000-b741a000 rw-p 00031000 08:01 383239 /usr/lib/libcurl.so.3.0.0

b741a000-b741b000 rw-p 00000000 00:00 0

b741b000-b747b000 r-xp 00000000 08:01 378267 /usr/lib/libxenserver.so.1.3

b747b000-b747f000 rw-p 00060000 08:01 378267 /usr/lib/libxenserver.so.1.3

b747f000-b74a3000 r-xp 00000000 08:01 383129 /usr/lib/libssh2.so.1.0.1

b74a3000-b74a4000 rw-p 00024000 08:01 383129 /usr/lib/libssh2.so.1.0.1

b74a4000-b74a8000 r-xp 00000000 08:01 376977 /usr/lib/libxenstore.so.3.0.0

b74a8000-b74a9000 rw-p 00003000 08:01 376977 /usr/lib/libxenstore.so.3.0.0

b74a9000-b74ac000 rw-p 00000000 00:00 0

b74ac000-b752a000 r-xp 00000000 08:01 378181 /usr/lib/libgcrypt.so.11.5.2

b752a000-b752d000 rw-p 0007d000 08:01 378181 /usr/lib/libgcrypt.so.11.5.2

b752d000-b75a6000 r-xp 00000000 08:01 380857 /usr/lib/libgnutls.so.13.0.6

b75a6000-b75ac000 rw-p 00078000 08:01 380857 /usr/lib/libgnutls.so.13.0.6

b75ac000-b75ad000 rw-p 00000000 00:00 0

b75ad000-b75cc000 r-xp 00000000 08:01 180978 /lib/libdevmapper.so.1.02

b75cc000-b75ce000 rw-p 0001e000 08:01 180978 /lib/libdevmapper.so.1.02

b75cf000-b75d6000 r--s 00000000 08:01 412913 /usr/lib/gconv/gconv-modules.cache

b75d6000-b75d7000 r-xp 00000000 08:01 377141 /usr/local/lib/libvirt-qemu.so.0.9.2

b75d7000-b75d8000 rw-p 00000000 08:01 377141 /usr/local/lib/libvirt-qemu.so.0.9.2Aborted

Moreover, Iam not able to start any VMs uisng xencenter after i have started using virsh. It says, Error: Starting VM 'XenServer SDK 5.6.100-47101p import' - Internal error: another frontend device is already connected to this domain (frontend (domid=0 | kind=vbd | devid=51712); backend (domid=0 | kind=vbd | devid=51712)). Even a reboot of the machine didnt help.

Any pointers on the above 2 issues would be of great help.

Sorry for the confusion.It was an edited one & hence thetypo. Below is the

actual output:

# virsh -c xenapi://<myip>

Enter username for <myip>: root

Enter root's password for <myip>:

error: authentication failed: (null)

I was not able to get anything in the Xen logs. Somehowfigured out to print

the Xen error using the patch given at the link http://osdir.com/ml/libvir-

list/2011-06/msg00298.html. It prints"TRANSPORT_FAULT". Any pointers to this

error would be much appreciated. Iam also trying to debugthis issue.

As per your suggestion,

I had used make rpm. But it requires xen-devel pacakge,which I was

not able to get for Xen 3.4.2. Is there any way where I canuse the source

package and build & install the library without using'make rpm' ?

Thanks for all the help.

Regards

Naresh

On Thu, Jul 14, 2011 at 7:07 PM, Matthias Bolte <matthias.bolte@googlemail.com> wrote:
>

2011/7/14 G Naresh Kumar <naresh.gadepalli@gmail.com>:
>> Hi Maththias,
>
> Thanks for the help. I finally was able to compile/install libvirt on
>> xenserver.
>>
>> I tried compiling the libvirt 0.9.2 with xen api support. Was able to
>> install it successfully. When I tried giving the virsh command, I got an
>> ‘authentication failed’ error as shown below.
>>
>> # virsh -c xenapi://<my local ip>
>> Enter username for <mylocalip>: root
>
>
Here you entered root
>

>> Enter intel123's password for <my local ip>:
>
>
but here it asks for intel123's, that's unexpected. Did you edit this
>one before mailing it, or is there really this mismatch?
>
>> error: authentication failed: (null)
>
>Outputting (null) here is actually a bug. The only way this can happen
>is when the login attempt fails but the XenServer doesn't provide an
>error message. Maybe have a look at the XenServer logs to see if it
>says something about a failed login attempt.
>

>> I also tried connecting to the local machine as below,
>>
>> virsh -c "xenapi:///"
>> error: authentication failed: Server name not in URI
>> error: failed to connect to the hypervisor
>
>
The XenAPI driver expects a server name. xenapi:/// _could_ be treated
>as xenapi://localhost, but it's not implemented that way.
>

>> Also I am trying to install ruby-libvirt on xenserver, which looks like
>> requires libvirt-devel package to be installed. How do I build it from the
>> libvirt 0.9.2 source package.
>
>
Running 'make rpm' should build an libvirt-devel RPM package for you.
>

>> Thanks,
>>
>> Naresh
>>
>> On Wed, Jun 15, 2011 at 8:19 PM, Matthias Bolte
>> <matthias.bolte@googlemail.com> wrote:
>>>
>>> 2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:
>>> > Hi Maththias,
>>> >
>>> > Thanks a lot for your response!.
>>> >
>>> > Is there a specific version of libvirt from which xenserver support is
>>> > added? I am getting the below error
>>> >
>>> > "error: invalid argument in libvirt was built without the 'xenapi'
>>> > driver"
>>>
>>> The means that your libvirt version is new enough and contains the
>>> XenAPI driver but that it was disabled on configure time, probably
>>> because the build server didn't have libxenserver installed and
>>> libvirt's configure script automatically disabled the driver because
>>> of a missing dependency.
>>>
>>> > I have installed libvirt from citrix yum repo.
>>>
>>> Then Citrix build libvirt without XenAPI support. As a long term
>>> solution you could report to whom ever is responsible for that repo
>>> and request to enabled XenAPI support in that libvirt package. As a
>>> short term solution you could build libvirt from source yourself and
>>> make sure to get the XenAPI driver enabled.
>>>
>>> > I am using Xenserver 5.5 with libvirt 0.8.2 and it does not seem to be
>>> > working.
>>>
>>> According to http://libvirt.org/hvsupport.html and the error message
>>> 0.8.2 is new enough.
>>>
>>> Matthias
>>>
>>> > Thanks,
>>> >
>>> > Naresh
>>> >
>>> > On Jun 15, 2011 7:03 PM, "Matthias Bolte"
>>> > <matthias.bolte@googlemail.com>
>>> > wrote:
>>> >> 2011/6/15 G Naresh Kumar <naresh.gadepalli@gmail.com>:
>>> >>> Hi,
>>> >>> Is libvirt supported on Citrix Xenserver. I have been searching for
>>> >>> the
>>> >>> same
>>> >>> with little/no luck.
>>> >>> If supported, can you point to some links/documents which can help me
>>> >>> try
>>> >>> out the same.
>>> >>> Thanks,
>>> >>> Naresh
>>> >>
>>> >> libvirt can use XenAPI via libxenserver [1]. That should allow you to
>>> >> use libvirt with a Citrix XenServer. You can use virsh like this
>>> >> assuming you have a libxenserver enabled libvirt:
>>> >>
>>> >> virsh -c xenapi://my-xen-server
>>> >>
>>> >> But it's true, there is no documentation about this on the libvirt
>>> >> website
>>> >> yet.
>>> >>
>>> >> [1] http://community.citrix.com/display/xs/Download+SDKs
>>> >>
>>> >> --
>>> >> Matthias Bolte
>>> >> http://photron.blogspot.com
>>> >
>> --
>> I was an atheist till I realized I am GOD
>>
>
>
--
>

Matthias Bolte
>http://photron.blogspot.com
>

>

>--
>I was an atheist till I realized I am GOD
>